English translation for "sightingboard"

测视板 觇板 觇标

Similar Words：

"sighting window" English translation, "sighting wire" English translation, "sighting-angle constructor" English translation, "sighting-angle mechanism" English translation, "sighting-tube" English translation, "sightingdisc" English translation, "sightinglevel" English translation, "sightings heartland ghost" English translation, "sightingstring" English translation, "sightless" English translation